immutability
"immutability" is a 12-letter English headword indexed on PlainSpell.
The verdict
“immutability” is uncommon English (frequency #94,985 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.
- #94,985
- frequency rank, English
- 2,140
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The state or quality of being immutable; immutableness.
Corpus desk
Index EN-immutability · immutability · English
immutability · rank #94,985 · 0 variants · 0 confusables
- FREQ-RARE #94,985
- LEN-MEGA 12 letters
- VOW-6 6 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,140
- PHOTO-FINISH illusionary
Nearest frequency peer: illusionary (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “immutability”
Sparse band: bars invert rank so rarer forms read shorter
- idiocracy
idiocracy
5,024 corpus weight
- Iftikhar
Iftikhar
5,022 corpus weight
- illusionary
illusionary
5,017 corpus weight
- immutability
immutability
5,016 corpus weight
- indispensib…
indispensible
5,011 corpus weight
- instal
instal
5,008 corpus weight
What this shows Long-tail view: where “immutability” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | immutability |
| Language | English |
| Part of speech | Noun |
| Letters | 12 |
| Frequency rank | #94,985 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “immutability” in English
Rare enough to double-check
immutability is uncommon English at frequency #94,985 among 2,140 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
The misspelling generator found no plausible variants for immutability, a straightforward case of a spelling with little room for common typos. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: Borrowed from Middle French immutabilité, itself borrowed from Latin immūtābilitās. By surface analysis, immutable + -ity. The correct English form is immutability, spelled I-M-M-U-T-A-B-I-L-I-T-Y.
Definition
- 1The state or quality of being immutable; immutableness.
- 2The state of being unchangeable in the memory after creation.
Recorded use
Wiktionary exampleThese source excerpts show how immutability appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
But, one might ask, how can the temporal event of God in our midst be the same as God's event to himself in his eternity if so absolute a distinction is drawn between the enarrable contents of history and the "eternal dynamism" of God's immutability, apatheia, and perfect fullness?
Etymology
Borrowed from Middle French immutabilité, itself borrowed from Latin immūtābilitās. By surface analysis, immutable + -ity.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "immutability", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 12 letters (nearest by frequency rank).